Sii Ukraine

We are looking for an SAP SuccessFactors Application Consultant, with a strong focus on the Employee Central module.

The project involves supporting the team throughout the SAP SuccessFactors implementation process. We are looking for someone with hands-on experience in SuccessFactors configuration and a strong understanding of HR business processes.

Requirements:

• Good knowledge and hands-on experience with SAP SuccessFactors Employee Central.
• Experience in configuring and supporting SAP SuccessFactors solutions.
• Strong understanding of HR business processes.
• Experience with data imports and migration into SAP SuccessFactors is highly desirable.
• Ability to support the team during the SAP SuccessFactors implementation process.

Nice to have:

- Knowledge of SAP SuccessFactors Performance & Goals and/or Succession & Development modules.

Sii Ukraine is a subsidiary of Sii Poland — the leader in IT, engineering, and consultancy services with over 7500 IT experts in Poland and more than 250 prestigious customers. We are looking for ambitious and top-quality professionals to join our project teams.

We are looking for a Senior Networking & Linux Driver Engineer

Design, develop and optimize high-performance networking software, Linux kernel components and device drivers for next-generation DPU platforms powering hyperscale cloud, AI/ML and HPC infrastructure. The engineer will work close to the Linux networking stack, packet processing data paths and hardware acceleration technologies.

Mandatory Profile

• 10+ years of professional experience in networking software development.
• Strong hands-on Linux kernel and device driver development experience.
• Deep understanding of Linux networking internals.
• Proven experience with Ethernet, TCP/IP and high-performance packet processing systems.
• Strong C/C++ programming skills.
• Track record of debugging and performance optimization in complex production environments.
• Ability to demonstrate direct implementation ownership and technical leadership.

Requirements

• Linux kernel development.
• Device driver development and debugging.
• Linux networking stack (netdev, packet processing, performance tuning).
• Advanced C/C++ on Linux.
• Network protocols: Ethernet, IPv4/IPv6, TCP, UDP.
• Git and modern software development practices.
• Strong system-level debugging skills.
• Tax residence in Ukraine required

Your responsibilities

• Develop and maintain networking software and Linux drivers for DPU platforms.
• Optimize high-speed packet processing paths.
• Collaborate closely with hardware, firmware and architecture teams.
• Investigate and resolve networking performance bottlenecks.
• Participate in architecture discussions, code reviews and system integration activities.
• Contribute to software quality, automation and CI/CD processes.

Strong Advantages

• Linux upstream contribution experience (kernel, netdev, drivers or networking subsystems).
• RDMA experience (RoCE, InfiniBand, verbs, queue pairs, completion model).
• DPDK development and optimization.
• Experience with NICs, SmartNICs, DPUs or networking accelerators.
• PCIe, DMA and low-level HW/SW integration.
• Data center networking, cloud infrastructure or HPC background.
• Previous experience in companies such as NVIDIA, Mellanox, Intel, Microsoft, Broadcom or Marvell.

Not Suitable If

• Experience is primarily application-level software development.
• No Linux kernel or driver ownership.
• Limited exposure to networking internals or packet processing.
• Primarily architecture or coordination roles without recent hands-on coding.

Sii Ukraine is a subsidiary of Sii Poland — the leader in IT, engineering, and consultancy services with over 7500 IT experts in Poland and more than 250 prestigious customers. We are looking for ambitious and top-quality professionals to join our project teams.

Join us as an experienced Citrix Engineer and take ownership of troubleshooting and stabilizing a business-critical Citrix environment. You will work hands-on with complex infrastructure issues, identify root causes, implement sustainable solutions, and collaborate with internal teams, external partners, and Citrix Support to ensure a stable and reliable production environment.

Your responsibilities:

• Troubleshoot and resolve complex issues across the Citrix environment, including Cloud Connector, License Server, PVS, and VDA.
• Investigate session freezes, unregistered VDAs, connectivity issues, and other Citrix-related incidents.
• Perform root-cause analysis and implement sustainable fixes to improve environment stability.
• Identify whether issues originate from Citrix or underlying infrastructure components, including network and DHCP.
• Support testing activities and ensure production readiness of implemented solutions.
• Monitor and troubleshoot dependencies between Citrix components and the broader infrastructure.
• Collaborate with internal infrastructure teams, external partners, and Citrix Support on critical incidents.

• Document findings, solutions, and troubleshooting procedures to support ongoing environment stability.

   

What we're looking for:

• Strong hands-on experience supporting and troubleshooting complex Citrix environments.
• Practical experience with Citrix Provisioning Services (PVS), Virtual Delivery Agent (VDA), Cloud Connector, and License Server.
• Solid experience with Citrix Virtual Apps and Desktops environments.
• Advanced troubleshooting and root-cause analysis skills, including experience with production incidents.
• Good understanding of networking and infrastructure dependencies, including DHCP and related services.
• Ability to quickly understand an existing environment and independently diagnose and resolve technical issues.
• Experience working with business-critical production environments.
• Strong problem-solving skills and the ability to collaborate effectively with technical teams and external support partners.

Sii Ukraine is a subsidiary of Sii Poland — the leader in IT, engineering, and consultancy services with over 7500 IT experts in Poland and more than 250 prestigious customers. We are looking for ambitious and top-quality professionals to join our project teams.

Join our Testing and Validation team to ensure the reliability and performance of programmable Ethernet switch software. You will design and implement automation frameworks and network test scenarios to verify cutting-edge hardware and software solutions.

By joining us, you become a member of the Embedded Competence Center at Sii, an internal organizational unit that brings together over 500 specialists from across the country. We are currently working on around 100 projects for 50 clients in various industries, including automotive, IoT, telecommunications, and medical sectors.

Your responsibilities:

• Design and implement automated test suites for switch software and firmware
• Develop Python-based test frameworks for functional and performance testing
• Perform regression, stress, and system-level testing on hardware platforms
• Integrate automated tests into CI/CD pipelines
• Collaborate with developers to identify, reproduce, and verify software defect fixes

Requirements:

• Minimum of 5 years of commercial experience in a similar role
• Strong experience in Python-based test automation
• Knowledge of network automation frameworks and Linux environments

L2, Third-Line Support, switches, Linux, Network Administration, Network Routers, Python, SWITCH/ROUTER tester

Sii Ukraine is a subsidiary of Sii Poland — the leader in IT, engineering, and consultancy services with over 7500 IT experts in Poland and more than 250 prestigious customers. We are looking for ambitious and top-quality professionals to join our project teams.

We are looking for an Embedded Software Engineer to join the BSP team and work on the development and maintenance of low-level firmware and Board Support Packages for advanced hardware platforms.

In this role, you will work closely with hardware, validation, and VLSI teams to enable seamless hardware-software integration and contribute to the development of next-generation products.

Your task:

• Design, develop, and maintain BSP and low-level firmware based on Zephyr RTOS
• Develop and integrate device drivers, board configurations, and platform services
• Implement management interfaces and protocols such as MCTP, IPMI, PLDM, NC-SI, and Redfish
• Support platform monitoring, control, and system management features
• Participate in board bring-up activities and chip/platform integration
• Develop Python and Bash tools for platform management, testing, and automation
• Collaborate with hardware, validation, and VLSI teams to ensure reliable system integration

Requirements:

• 3+ years of experience in embedded software or firmware development in a Linux environment
• Strong programming skills in C
• Experience with Python and Bash scripting
• Understanding of networking concepts and communication protocols
• Knowledge of hardware/software interfaces such as I2C, SPI, GPIO, UART
• Experience working close to hardware and SoC/board-level development

Your strengths:

• Strong technical and problem-solving skills
• Ability to work independently and learn quickly
• Good communication skills
• Team-oriented mindset and ability to collaborate across disciplines

This is an opportunity to work on challenging low-level embedded systems, combining software development with hardware integration in an innovative technology environment.